MARIEKE ROBERTS, Director & Technical Coach 

Coach Marieke holds multiple swimming titles, among them: European Champion (Athens, Greece-1991), Dutch Record Holder, and World Championship Finalist (Perth, Australia-1990). At one point she was ranked number one in the world in the 50 freestyle.  As a member of the National Swim Team in the Netherlands, she traveled to compete and train in more than 20 countries. In 1993, Marieke was recruited by SMU, where she was NCAA Division I All American for 3 years (she graduated college in 3 years), won several SWC and NCAA medals, and ended her career with a 2nd place team finish at the NCAA Championship in 1996.

After several years of coaching age-group swimmers in North Texas, Marieke now coaches for STREAMLINE only. She has learned from and was mentored by several world-class swim coaches who guest coached at the STREAMLINE camps.As a swimmer, Marieke herself was subjected to underwater filming and stroke analysis. As a coach, she initially learned the technical aspects of stroke analysis, including underwater filming and motion software application, from Dr. Mensonidus, Olympic Bronze Medalist and Biomechanic Specialist in the ideal streamline.

 In 2014, she traveled to Europe to learn from elite biomechanics at the Dutch Olympic Training Center.


ZACH WIDENER, Technique Coach

Coach Zach has been coaching at the STREAMLINE clinics and camps since 2011. He was the head swim coach of the Richland High School team in North Richland Hills for ten years. Zach also has 8 years of club coaching experience: From 2003-2011 he coached for TRS where he climbed his was up to head age group coach. In addition, he was a camp counselor/coach for the acclaimed A&M Swim Camp from 1999-2003.

Prior to coaching, Zach swam for A&M under Mel Nash and Jay Holmes. While swimming for the Aggies, he qualified for National Championships in the 100 and 200 breaststroke events, was a multiple-time Big 12 Conference Championships finalist, and was co-captain of the Men's A&M Swim Team during his senior year of 2003. Coach Zach’s athletic focus is on long-term competitive success and he believes that pursuing excellent technique is the premier fundamental for any successful athlete, which is why he chooses to coach for STREAMLINE.


SHAILEY BRUMLEY, Technique Coach

Since the beginning of the summer of 2011, Shailey has become a great asset to STREAMLINE because of her passion for swimming, a remarkable understanding of and interest in proper swim technique, and a wonderful ability to connect with swimmers.  She was discovered by Coach Anton Koekkoek during one of the STREAMLINE Elite sessions in 2010. 

Shailey holds a degree in Exercise Science from Southern Illinois University. This degree will prepare her for a Masters program in bio-kinesiology.  Shailey enjoys the privilege to be mentored as a swim coach by International Coach Anton Koekkoek.  Eventually, Shailey plans to combine coaching with scientific research in swimming. At Southern Illinois University, Shailey earned a partial swimming scholarship by strengthening the Salukis sprint squad, coached by Rick Walker and Scott Olson.


RYAN BERUBE, Olympic Champion & Guest Speaker

Ryan Berube is an Olympic Champion and former member of the United States National Team.  He won the gold medal as a member of the U.S. men's relay team in the 4x200m freestyle at the 1996 Summer Olympics in Atlanta, Georgia. 

Earlier in 1996, he was named NCAA Swimmer of the Year after winning the 200y IM and 100y and 200y backstroke at NCAA Championships. In 1995, Ryan also swam on the 4x200m freestyle relay that broke the Pan American Record at the Pan American Games. 
In the pool, Ryan was known for his impeccable technique and unparalleled work ethic.  With his individual events, he was ranked top-10 in the world several times.
Ryan is a talented motivational speaker who captivates and connects with audiences of all ages. He visits most STREAMLINE sessions to deliver a motivational speech, during which he shows his Olympic gold medal, plays a DVD with his winning Olympic race, and stays for autographs and pictures.



MARTINA MAROVCOVA, Olympic Medalist & Guest Speaker

Martina Marovcova is an Olympic Medalist, World Champion, European Champion, and member of the Slovakian National Team. She won two individual silver medals at the 2000 Olympics in Sydney, in the 200 freestyle (in which she missed the gold by a fraction) and in the 100 butterfly. Martina has competed in 5 consecutive Olympic Games and is now preparing for London 2012. Martina broke several World Records through her long and succesful swimming career.

With endless determination, dedication, and drive, Martina has become one of the most decorated female athletes of all time. She has won an incredible collection of 67 medals at prime meets, including 2 Olympic medals, 22 World Champs medals, and 43 European Championship medals. In addition, she has won 105 medals at FINA World Cup meets, and became overall World Cup Series winner 3 times.
Martina was recruited by SMU in 1996 and during her impressive college career she became 14-time NCAA Champion. In 1999, she was named NCAA's Women's Swimmer of the Year. STREAMLINE is fortunate to count Martina as one of its guest speakers.


COACH ROB KENNIS​, Technique Coach (STREAMLINE Camp Curacao)

Coach Kennis is an accomplished elite swim coach from The Netherlands with over 30 years of coaching experience as private, club, and national team coach. He has coached in Europe and in Curacao, guiding swimmers to the highest levels of competition in pool as well as open water swimming. Among the swimmers he has coached are Marcel Wouda (World Champion 200 individual medley and Oympic Bronze medalist), and open water stars Linsy Heister (World Champion) and Ferry Weertman (World Championship Silver medalist). From 2013 to 2014, Coach Kennis was Head Coach of the Dutch National Open Water Junior Team. From 2011 to 2012, he guided several long distance swimmers to the 2012 Olympics in London.     

In addition to mastering the physiology aspects of coaching, Coach Kennis possesses expertise in technique training and has extensive experience with underwater video and stroke analysis. He has learned from world-class biomechanics that guide the Dutch Olympic swimmers. He has helped elite, age group, and masters swimmers, as well as triathletes improve their swim technique.
Coach Kennis' expertise has not gone unnoticed internationally: In 2015, he worked with the Curacao National Team. In 2014, he coached the Mozambique National Team to and during the Common Wealth Games in Glasgow. In 2011, he prepared a Belgian National Team member for World Champs in Shanghai. 


COACH ED NESSEL, Sports Scientist, Coach, Author of Swim to Win (STREAMLINE Elite 2013)

Coach Nessel is a Level 5 ASCA certified swim coach with over 40 years of coaching experience. He has coached six Olympians, including Olympic Champion Cullen Jones, as well as NCAA and national champions. Coach Nessel is also the national librarian for United States Masters Swimming and has coached at the Olympic Training Center in Colorado Springs.

In addition, he ran the Racing Camp and Clinics at Rutgers University (NJ) for five years.
Coach Nessel's coaching credentials are complimented by his scientific research and knowledge. His career as a pharmacist, biochemist, and physiologist has led him to the forefront in swim science. He even serves as a scientist on the National Swimming Sports Medicine Committee. With degrees in chemistry, infectious diseases, public health, and nutrition, Coach Nessel offers swimmers an incredible wide range of knowledge and expertise that goes far beyond just swim practice.

His science articles have been published in many medical, scientific and athletic journals throughout the USA, and have been translated into several languages. The information in his articles is always cutting edge, much of which has been field-tested by Coach Nessel himself. A true scientist by nature, Coach Nessel thinks out of the box and is constantly looking for technically groundbreaking information. His book Swim to Win is available at Amazon and Barnes & Noble. Coach Nessel recently published his second swim book, Keeping the Athlete Healthy.


COACH PAUL BERGEN, Olympic Coach (STREAMLINE Elite 2012)

Coach Bergen is an Olympic swimming coach from the United States. He has coached in the USA and Canada, winning coach of the year honors in both countries in different years. He was inducted into the International Swimming Hall of Fame as an Honor Coach in 1988. Collectively, Coach Bergen’s swimmers have broken 21 World Records, 24 USA Records, and 13 Canadian Records. Among the swimmers he has coached are Inge de Bruijn (four-time Olympic Champion and numerous world records) and Tracy Caulkins (three-time Olympic Champion and 5 world records). Coach Bergen also served on the USA swimming coaching staff to 3 World Championships and was an Olympic coach in 1980, 1984, 1988, 2000.

Coach Bergen has coached with the University of Texas, Cincinatti Marlins in Ohio, Nashville Aquatic Club in Tennessee, Tualatin Hills in Oregon, and Etobicoke in Ontario.
There have been very few coaches who have developed international level athletes at the grass-roots, club level as Coach Bergen has. His home grown swimmers won 2 Olympic gold medals and 4 bronze, set 12 World Records, won 16 World Championship medals including 9 golds and 6 collegiate championships. 


COACH ANTON KOEKKOEK, International Coach (STREAMLINE Elite 2010-2012)

Coach Koekkoek was head coach of one of Holland's most successful swim clubs for almost two decades. He produced an Olympian, a World Championship finalist, and a European champion. Collectively, his swimmers, which include many former members of the Dutch National Team, won over one hundred gold medals at the Dutch National Championships and broke several Dutch records. Coach Koekkoek's women's team conquered the national team title in 1998.

In addition to club coaching, Coach Koekkoek served as both coach and team manager for the Dutch National Team with which he traveled to international competitions across Europe. He served as chairman of the Dutch Society of Swim Coaches for 15 years, frequently publishes swimming-related articles, is head-editor of the technical bulletin 'Motivation', is responsible for a swim website, and speaks/teaches often at swim forums in both Germany and the Netherlands.


Dr. WIEGER MENSONIDUS, Technical Coach & Biomechanic (STREAMLINE Elite 2010)

Dr. Mensonidus, Olympic Bronze Medalist in the 200 breaststroke (Rome), is a world-class biomechanic in the field of decreased resistance and the ideal STREAMLINE for the elite swimmer.  In Europe, from 1998-2008 he served as technical advisor (stroke analysis and correction) for Olympic Gold Medalists Pieter van den Hoogenband, Inge de Bruijn, and Marleen Veldhuis. This STREAMLINE theory expert has developed proprietary computer software that allows for calculations involving swim technique analysis.  These calculations produce instruction and insight for the coach and athlete that would be impossible to obtain through normal observation.

Dr. Mensonidus is a retired professor at a university in The Hague, The Netherlands, where he taught IT, automation, math, and mechanics. He also has extensive coaching experience as head coach of one of Holland's top swim clubs.  STREAMLINE was very fortunate to attract Dr. Mensonidus as a staff member for its first year in operation in 2010, especially since he is now retired from his involvement with swimming. As Technical Coach in 2010, Dr. Mensonidus' ideas and expertise laid the foundation of the current success of Camp STREAMLINE.